312068969 has 4 divisors (see below), whose sum is σ = 312162900. Its totient is φ = 311975040.

The previous prime is 312068963. The next prime is 312069001. The reversal of 312068969 is 969860213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10004569 + 302064400 = 3163^2 + 17380^2 .

It is a cyclic number.

It is not a de Polignac number, because 312068969 - 2²⁴ = 295291753 is a prime.

It is a super-2 number, since 2×312068969² = 194774082825445922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312068963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41792 + ... + 48689.

It is an arithmetic number, because the mean of its divisors is an integer number (78040725).

Almost surely, 2^312068969 is an apocalyptic number.

It is an amenable number.

312068969 is a deficient number, since it is larger than the sum of its proper divisors (93931).

312068969 is an equidigital number, since it uses as much as digits as its factorization.

312068969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93930.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 312068969 is about 17665.4739251456. The cubic root of 312068969 is about 678.2922610879.

The spelling of 312068969 in words is "three hundred twelve million, sixty-eight thousand, nine hundred sixty-nine".